Wasn't Apple going to introduce their own iMessage service like Blackberry's where only Apple device users could instant meaasage each other on only Apple devices. Not the icon in the upper left corner, that the carriers' instant messaging service.

That's AT&T's instant message (for me), Verizon or Sprint instant message for others. Apple was supposed to introduce their own iMessage, instant message. It was to be modeled after Blackberry's instant message service.......